immaturely

Giving an appearance of immaturity. / Without maturity.

Japanese Meaning

幼稚に / 未熟に

The manager immaturely dismissed their colleague's concerns, which damaged team morale.

そのマネージャーは同僚の懸念を幼稚に却下し、それがチームの士気を損なった。

Sense（1）

Giving an appearance of immaturity.

They may be approaching 40, but after three beers they are behaving as immaturely as any teenager.

Sense（2）

Without maturity.

He immaturely chose the sports car instead of the money.

more immaturely

（ comparative ）

most immaturely

（ superlative ）